The California Daily 4 lottery game started in June of 2008.  Since that time - there are 13 sets of boxed doubles that have never been drawn.  All 36 sets of double 22's and double 44's have been drawn.  The double with the most undrawn sets is the double 66.  Double 66 is also the lowest drawn double in the history of the game.  (Double 44 and 99 are the most drawn set of doubles.) 

Boxed Doubles Never Drawn

• 00:  5800
• 11:  1190
• 33:  2033
• 55:  2556, 2557
• 66:  6680, 2466, 3466, 3566, 4566, 
• 77:  2778
• 88:  1088
• 99:  1799